mirror of
https://github.com/Aigor44/ncursesw-morphos.git
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b93d96b78a
+ modify form library to optionally delay cursor movement on a field edge/boundary (patch by Leon Winter). + modify form library to avoid unnecessary update of cursor position in non-public fields (patch by Leon Winter). + remove unused _nc_import_termtype2() function. + also add/improve null-pointer checks in other places + add a null-pointer check in _nc_parse_entry to handle an error when a use-name is invalid syntax (report by Chung-Yi Lin).
311 lines
11 KiB
C
311 lines
11 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2017,2018 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Juergen Pfeifer, 1995,1997 *
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****************************************************************************/
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/* $Id: form.priv.h,v 0.43 2018/04/14 21:06:14 Leon.Winter Exp $ */
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#ifndef FORM_PRIV_H
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#define FORM_PRIV_H 1
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/* *INDENT-OFF*/
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#include "curses.priv.h"
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#define NCURSES_OPAQUE_FORM 0
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#include "mf_common.h"
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#if USE_WIDEC_SUPPORT
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#if HAVE_WCTYPE_H
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#include <wctype.h>
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#endif
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#ifndef MB_LEN_MAX
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#define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */
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#endif
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#define FIELD_CELL NCURSES_CH_T
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#define NCURSES_FIELD_INTERNALS char** expanded; WINDOW *working;
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#define NCURSES_FIELD_EXTENSION , (char **)0, (WINDOW *)0
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#else
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#define FIELD_CELL char
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#define NCURSES_FIELD_EXTENSION /* nothing */
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#endif
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#include "form.h"
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/***********************
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* Default objects *
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***********************/
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extern NCURSES_EXPORT_VAR(FORM *) _nc_Default_Form;
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extern NCURSES_EXPORT_VAR(FIELD *) _nc_Default_Field;
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extern NCURSES_EXPORT_VAR(FIELDTYPE *) _nc_Default_FieldType;
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/* form status values */
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#define _OVLMODE (0x04U) /* Form is in overlay mode */
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#define _WINDOW_MODIFIED (0x10U) /* Current field window has been modified */
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#define _FCHECK_REQUIRED (0x20U) /* Current field needs validation */
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/* field status values */
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#define _CHANGED (0x01U) /* Field has been changed */
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#define _NEWTOP (0x02U) /* Vertical scrolling occurred */
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#define _NEWPAGE (0x04U) /* field begins new page of form */
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#define _MAY_GROW (0x08U) /* dynamic field may still grow */
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/* fieldtype status values */
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#define _LINKED_TYPE (0x01U) /* Type is a linked type */
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#define _HAS_ARGS (0x02U) /* Type has arguments */
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#define _HAS_CHOICE (0x04U) /* Type has choice methods */
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#define _RESIDENT (0x08U) /* Type is built-in */
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#define _GENERIC (0x10U) /* A generic field type */
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/* This are the field options required to be a selectable field in field
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navigation requests */
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#define O_SELECTABLE (O_ACTIVE | O_VISIBLE)
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/* If form is NULL replace form argument by default-form */
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#define Normalize_Form(form) \
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((form) = (form != 0) ? (form) : _nc_Default_Form)
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/* If field is NULL replace field argument by default-field */
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#define Normalize_Field(field) \
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((field) = (field != 0) ? (field) : _nc_Default_Field)
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#if NCURSES_SP_FUNCS
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#define Get_Form_Screen(form) \
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((form)->win ? _nc_screen_of((form->win)):CURRENT_SCREEN)
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#else
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#define Get_Form_Screen(form) CURRENT_SCREEN
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#endif
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/* Retrieve forms window */
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#define Get_Form_Window(form) \
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((form)->sub \
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? (form)->sub \
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: ((form)->win \
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? (form)->win \
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: StdScreen(Get_Form_Screen(form))))
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/* Calculate the size for a single buffer for this field */
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#define Buffer_Length(field) ((field)->drows * (field)->dcols)
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/* Calculate the total size of all buffers for this field */
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#define Total_Buffer_Size(field) \
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( (size_t)(Buffer_Length(field) + 1) * (size_t)(1+(field)->nbuf) * sizeof(FIELD_CELL) )
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/* Logic to determine whether or not a field is single lined */
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#define Single_Line_Field(field) \
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(((field)->rows + (field)->nrow) == 1)
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#define Field_Has_Option(f,o) ((((unsigned)(f)->opts) & o) != 0)
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/* Logic to determine whether or not a field is selectable */
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#define Field_Is_Selectable(f) (((unsigned)((f)->opts) & O_SELECTABLE)==O_SELECTABLE)
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#define Field_Is_Not_Selectable(f) (((unsigned)((f)->opts) & O_SELECTABLE)!=O_SELECTABLE)
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typedef struct typearg
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{
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struct typearg *left;
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struct typearg *right;
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}
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TypeArgument;
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/* This is a dummy request code (normally invalid) to be used internally
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with the form_driver() routine to position to the first active field
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on the form
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*/
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#define FIRST_ACTIVE_MAGIC (-291056)
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#define ALL_FORM_OPTS ( \
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O_NL_OVERLOAD |\
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O_BS_OVERLOAD )
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#define STD_FIELD_OPTS (Field_Options)( \
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O_VISIBLE |\
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O_ACTIVE |\
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O_PUBLIC |\
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O_EDIT |\
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O_WRAP |\
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O_BLANK |\
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O_AUTOSKIP|\
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O_NULLOK |\
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O_PASSOK |\
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O_STATIC)
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#define ALL_FIELD_OPTS (Field_Options)( \
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STD_FIELD_OPTS |\
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O_DYNAMIC_JUSTIFY |\
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O_NO_LEFT_STRIP |\
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O_EDGE_INSERT_STAY)
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#define C_BLANK ' '
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#define is_blank(c) ((c)==C_BLANK)
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#define C_ZEROS '\0'
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extern NCURSES_EXPORT(TypeArgument *) _nc_Make_Argument (const FIELDTYPE*, va_list*, int*);
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extern NCURSES_EXPORT(TypeArgument *) _nc_Copy_Argument (const FIELDTYPE*, const TypeArgument*, int*);
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extern NCURSES_EXPORT(void) _nc_Free_Argument (const FIELDTYPE*, TypeArgument*);
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extern NCURSES_EXPORT(bool) _nc_Copy_Type (FIELD*, FIELD const *);
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extern NCURSES_EXPORT(void) _nc_Free_Type (FIELD *);
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extern NCURSES_EXPORT(int) _nc_Synchronize_Attributes (FIELD*);
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extern NCURSES_EXPORT(int) _nc_Synchronize_Options (FIELD*, Field_Options);
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extern NCURSES_EXPORT(int) _nc_Set_Form_Page (FORM*, int, FIELD*);
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extern NCURSES_EXPORT(int) _nc_Refresh_Current_Field (FORM*);
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extern NCURSES_EXPORT(FIELD *) _nc_First_Active_Field (FORM*);
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extern NCURSES_EXPORT(bool) _nc_Internal_Validation (FORM*);
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extern NCURSES_EXPORT(int) _nc_Set_Current_Field (FORM*, FIELD*);
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extern NCURSES_EXPORT(int) _nc_Position_Form_Cursor (FORM*);
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extern NCURSES_EXPORT(void) _nc_Unset_Current_Field(FORM *form);
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#if NCURSES_INTEROP_FUNCS
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_INTEGER(void);
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_ALNUM(void);
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_ALPHA(void);
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_ENUM(void);
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_NUMERIC(void);
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_REGEXP(void);
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_IPV4(void);
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extern NCURSES_EXPORT(FIELDTYPE *)
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_nc_generic_fieldtype(bool (*const field_check) (FORM*,
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FIELD *,
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const void *),
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bool (*const char_check) (int,
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FORM*,
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FIELD*,
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const void *),
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bool (*const next)(FORM*,FIELD*,const void*),
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bool (*const prev)(FORM*,FIELD*,const void*),
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void (*freecallback)(void*));
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extern NCURSES_EXPORT(int) _nc_set_generic_fieldtype(FIELD*, FIELDTYPE*, int (*)(void**));
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extern NCURSES_EXPORT(WINDOW*) _nc_form_cursor(const FORM* , int* , int* );
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#define INIT_FT_FUNC(func) {func}
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#else
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#define INIT_FT_FUNC(func) func
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#endif
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extern NCURSES_EXPORT(void) _nc_get_fieldbuffer(FORM*, FIELD*, FIELD_CELL*);
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#if USE_WIDEC_SUPPORT
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extern NCURSES_EXPORT(wchar_t *) _nc_Widen_String(char *, int *);
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#endif
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#ifdef TRACE
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#define returnField(code) TRACE_RETURN1(code,field)
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#define returnFieldPtr(code) TRACE_RETURN1(code,field_ptr)
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#define returnForm(code) TRACE_RETURN1(code,form)
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#define returnFieldType(code) TRACE_RETURN1(code,field_type)
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#define returnFormHook(code) TRACE_RETURN1(code,form_hook)
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extern NCURSES_EXPORT(FIELD **) _nc_retrace_field_ptr (FIELD **);
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extern NCURSES_EXPORT(FIELD *) _nc_retrace_field (FIELD *);
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extern NCURSES_EXPORT(FIELDTYPE *) _nc_retrace_field_type (FIELDTYPE *);
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extern NCURSES_EXPORT(FORM *) _nc_retrace_form (FORM *);
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extern NCURSES_EXPORT(Form_Hook) _nc_retrace_form_hook (Form_Hook);
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#else /* !TRACE */
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#define returnFieldPtr(code) return code
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#define returnFieldType(code) return code
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#define returnField(code) return code
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#define returnForm(code) return code
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#define returnFormHook(code) return code
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#endif /* TRACE/!TRACE */
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/*
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* Use Check_CTYPE_Field() to simplify FIELDTYPE's that use only the ccheck()
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* function.
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*/
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#if USE_WIDEC_SUPPORT
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#define Check_CTYPE_Field(result, buffer, width, ccheck) \
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while (*buffer && *buffer == ' ') \
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buffer++; \
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if (*buffer) \
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{ \
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bool blank = FALSE; \
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int len; \
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int n; \
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wchar_t *list = _nc_Widen_String((char *)buffer, &len); \
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if (list != 0) \
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{ \
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result = TRUE; \
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for (n = 0; n < len; ++n) \
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{ \
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if (blank) \
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{ \
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if (list[n] != ' ') \
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{ \
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result = FALSE; \
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break; \
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} \
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} \
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else if (list[n] == ' ') \
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{ \
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blank = TRUE; \
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result = (n + 1 >= width); \
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} \
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else if (!ccheck(list[n], NULL)) \
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{ \
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result = FALSE; \
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break; \
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} \
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} \
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free(list); \
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} \
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}
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#else
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#define Check_CTYPE_Field(result, buffer, width, ccheck) \
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while (*buffer && *buffer == ' ') \
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buffer++; \
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if (*buffer) \
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{ \
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unsigned char *s = buffer; \
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int l = -1; \
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while (*buffer && ccheck(*buffer, NULL)) \
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buffer++; \
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l = (int)(buffer - s); \
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while (*buffer && *buffer == ' ') \
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buffer++; \
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result = ((*buffer || (l < width)) ? FALSE : TRUE); \
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}
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#endif
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/* *INDENT-ON*/
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#endif /* FORM_PRIV_H */
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